GLYCERYL TRINITRATE TABLETS 500 MICROGRAMS
Glyceryl trinitrate, or GTN, is a type of medicine called a nitrate. It is used to treat angina (chest pain).
It can help stop chest pain if an angina attack has already started. It can also help to prevent them from starting.
GTN ointment can also be used to treat tears in the skin around your bottom (anal fissures).
It comes as tablets or as a spray that you put under your tongue. It also comes as patches and ointment that you put on your skin.
Sometimes GTN patches are used in hospital to make your veins easier to see if you need to have a drip (infusion).